Henry tesseyman



No. 620,724. Patented Mar; 7 I899.

H. TESSEYMAN.

BRAKE MECHANISM.

(Application filed. July 16, 1898.)

(No Model.)

- IA '1 {Ill/11111 01111141! I Invent u 1'."

1% his Agt UNITED STATES PATENT OFFICE.

HENRY TESSLEYMAN, or DAYTON, OHIO, ASSIGNO R 'ro THE BARNEY & SMITH CAR. COMPANY.

B'RAKE MECHANISM.

ePEcIFIcA'rIon forming part of Letters Patent No. 620,724, dated March 7, 1899. Application filed July 16, 1898. Serial No. 686,113- (No model.)

To all whom it may concern:

citizen of the United States, residing at Day-' ton, in the county of Montgomery and State of Ohio, have invented a certain new anduseful Improvement in Brake Mechanism, of which the following is a specification, reference being had therein to the accompanying drawings. My invention relates to brak'e mechanism for car-trucks, and has for its object to'provide means for taking up the wear between the brake-hangers and the bearings in which they operate, the manner in which I accom; plish said obj ect, together wi FlTdetailsof con.- struction' and arrangement of parts, being; hereinafter fully described, pointed out in the claims at the endof this specification, and shown in the accompanying d rawings, in whichi I I Figure 1 is a perspectiveyie'w of a. portion of a car-truck with brakemechanism embodying my invention appliedthere'to; Fig.2, a side view of the brake-operating mechanism and brake-hanger bracket on the dead-lever side detached'from the truck-frame; Fig. 8, a perspective view of the brakerhangei'l adj listing-block, and adjustable bearing detached; Fig. 4, a cross-section through the line X X; of Fig. 2; Fig. .5, a'per' pective View of the adjustable bearing and ad usting-block detached; Fig. 6, a perspective view of the brake-hanger, bracket detached, and Fig. 7 a side view of the brake-head detached. 7

Similar letters and numerals 01? reference indicate like parts in all the figures of the drawings. I W

A and B represent side bars-of the truckframe at one side thereof, those of the opposite side being removed for the purpose of presenting an unobstructed view of the brake mechanism.

13 represents cross-bars which are secured at each side of the truck-frame to the side bars B by means of flanges 1 andbolts 2, D being a stifiening-plate arranged between the cross-bars O and which may be secured to the side bars in any suitable manner.

E represents a brake-hanger bracket or support preferably formed in a single piece and provided with a flange 3, web f1, shoulder 5, and hollow sleeve 6, forminga pocket 7, having a depression 8, the function of which pocketand-depression will presently appear. One of these supports is secured to each of the cross-bars O at each side of the truck and in proper relation to the wheels .by bolts 9, which pass through holes 10, registering with corresponding holes in the said cross-bars, the shoulder 5vresting on the upper edge of cross-bars O, as more-clearly shown in Figs. 1 and 2.'

F represents a brake-head, and G abrakeshoe attached thereto, thehrakehead beingprovidedwith a pocketll and adepression 12, and it may otherwise be of any well-known i type and connected with the brake-shoe in the usual manner, andth'ey are carried by the brake-hanger bracket E by means of brakehanger H, which is preferably made from a*7o single piece of round iron'or steel-{having por tions 13 and 14of its ends -tu rned at right angles to its center portion 1'5'to form journals upon which, the said brake hangeriand' the brake-head a'reifree to oscillate, the free ends '7 5 I of the brake-hanger being tied together bya .tie plate or brace I, which is pierced near each of itsends to engage the portions 13 and 14, and which when so engaged is prevented from disengagement by means of ordinary cotterkeys J, which engage holes in the ends of the brake-hanger, as clearly shown in Fig. 3

"The journal 13 has a bearing in the depression l ment of these parts, and to obviate this dif- -ficu1ty I provide a loose or adjustable bea ing K and place one of the same in the pocket 7 of the brake-hanger bracket E and one in the pocket 11 in the brake-head F to form bearings for the outer half of'journals 13 and 14, and at the back of each of these loose I00 bearin gs I place an adj listing-block L, having an inclined surface 16, which registers with end of the adj LlSiJlIlg-blOGk and the inside of said washer, which bears against the faces of the brake-hanger and brake-head, as clearly shown in Fig. 4. Therefore as the journals 13 and 14: and their respective bearings wear away proper adjustment of these parts can be maintained by screwing up the nuts 20, which will draw the ad justing-bloek forward, and thus compensate for such wear so long as there remains any space between the faces 28 and 24: of the journal-bearings, a sufficient amount of which is provided for when the parts are first fitted together. The brakes are operated by the usual levers M and N, which are pivoted at 25 to arms 26, extending from the brake-heads, and which are pivotally connected by means of a turnbuckle O, the leverM being operated by a rod P, pivoted thereto at 27. Adead-lever stop Q is bolted to each of the brackets E on the deadlever side of the brake mechanism.

It is to be understood that my improvement can be employed in connection with various types of brake mechanism in common use, and it is obvious that the details of construction herein shown and described can be departed from without departing from the spirit of the invention. I do not therefore limit the invention to such exact details of construction. 7

Having thus fully described my invention, I claim. I

1.- A brake mechanism having in combination, a swinging brake-hanger and a support therefor, the said brake-hanger being provided with a journal having a lower bearing in said support and an upper bearing in a separate bearing carried in a pocket in said support, and means intermediate the said separate bearing and the. wall of said pocketwhereby the said journal and said bearin gs can be adjusted to each other, substantially as set forth;

2. A brake mechanism having in'combi'nation, a swinging brake-hanger, a support therefor, and a brake-head, the said brakehanger being provided with journals having bearings partially in said support and partially in said brake-head, separate bearings carried in pockets in said support and in said brake-head and forming partial bearings for said journals, and means intermediate-the said separate bearings and the walls of said pockets whereby the said, journals and the said bearings therefor can be adjusted to each other, substantially as set forth.

3'. In a brake mechanism the combination of a swinging brake-hanger, a support there? for, a journal forming part of said brake.

hanger, a bearing in said support for a por tion of said journal, a pocket in said support,

a removable bearing carried therein for a portion of said journal, an adjusting-block intermediate the said removable bearing and the wall ofsaid pocket, and means whereby the said adjusting-block can be made to adjust said bearings to said journal, substantially as set forth. V

4. In a brake mechanism the combination of a swinging brake-hanger, a support therefor, a brake-head, journals forming part of said brake-hanger, bearings formed in said support and said brake-head for portions of said journals, pockets in said support andto said journals, substantially as setfo'rth. r

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